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Catalyst for hydrodeoxygenation of bio-oil and preparation method of catalyst

A hydrodeoxygenation and catalyst technology, which is applied in the field of bio-oil hydrodeoxygenation catalyst and its preparation, can solve the problems of poor hydrothermal stability, easy aggregation and deactivation of catalyst active phase, etc. The effect of stabilizing and improving the performance of sulfur fixation

Active Publication Date: 2016-08-17
GUANGHAN TIANZHOU AERO ENGINE FUEL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, the catalyst also has disadvantages such as poor hydrothermal stability and easy aggregation and deactivation of the active phase of the catalyst.

Method used

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  • Catalyst for hydrodeoxygenation of bio-oil and preparation method of catalyst
  • Catalyst for hydrodeoxygenation of bio-oil and preparation method of catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Preparation of oxidation state catalyst:

[0039] Take by weighing 1000 grams of dry rubber powder and 30 grams of safflower powder and mix them evenly, then add 900 milliliters of aqueous solution containing 28 g of nitric acid, and extrude them into cylindrical wet bars with an outer diameter of φ1.4 mm on a plunger extruder. Then the cylindrical wet strip was dried at 120°C for 4 hours, and then calcined at 600°C for 3 hours to obtain carrier Z with a pore volume of 0.62mL / g and a specific surface area of ​​280m 2 / g.

[0040] Add 50g of ammonium metavanadate, 50g of manganese carbonate and 1000g of citric acid into 400mL of aqueous solution, heat and stir until completely dissolved to obtain 500mL of impregnation solution. Take 400g of the above-mentioned carrier Z, spray all the above-mentioned impregnating liquid evenly on the carrier Z, then put the obtained semi-dry catalyst into an oven and dry it at 120°C for 4 hours, and then place it in a ventilated tub...

Embodiment 2

[0047] (1) Preparation of oxidation state catalyst:

[0048] Take by weighing 1000 grams of dry rubber powder and 30 grams of safflower powder and mix them evenly, then add 900 milliliters of aqueous solution containing 28 g of nitric acid, and extrude them into cylindrical wet bars with an outer diameter of φ1.4 mm on a plunger extruder. Then the cylindrical wet strip was dried at 120°C for 4 hours, and then calcined at 600°C for 3 hours to obtain carrier Z with a pore volume of 0.62mL / g and a specific surface area of ​​280m 2 / g.

[0049] Add 28g of ammonium metavanadate and 18g of manganese carbonate into 350mL of citric acid aqueous solution, heat and stir until the ammonium metavanadate and citric acid are completely dissolved to obtain 500mL of impregnation solution. The same method as in Example 1 was used to impregnate the support Z to obtain the hydrodeoxygenation catalyst C2.

[0050] (2) Pretreatment before vulcanization

[0051] Phosphoric acid is selected as th...

Embodiment 3

[0056] (1) Preparation of oxidation state catalyst:

[0057] Take by weighing 1000 grams of dry rubber powder and 30 grams of safflower powder and mix them evenly, then add 900 milliliters of aqueous solution containing 28 g of nitric acid, and extrude them into cylindrical wet bars with an outer diameter of φ1.4 mm on a plunger extruder. Then the cylindrical wet strip was dried at 120°C for 4 hours, and then calcined at 600°C for 3 hours to obtain carrier Z with a pore volume of 0.62mL / g and a specific surface area of ​​280m 2 / g.

[0058] Add 60g of ammonium metavanadate and 70g of manganese carbonate into 350mL of aqueous solution, heat and stir until the ammonium metavanadate and citric acid are completely dissolved to obtain 500mL of impregnation solution. The same method as in Example 1 was used to impregnate the carrier Z to obtain the hydrodeoxygenation catalyst C3.

[0059] (2) Pretreatment before vulcanization

[0060]Phosphoric acid is selected as the VA oxygen-c...

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Abstract

The invention provides a catalyst for hydrodeoxygenation of bio-oil and a preparation method of the catalyst. The preparation method comprises the steps that a roasted catalyst carrier impregnated with active components is taken and adsorbs oxygen-containing inorganic acid, high-temperature drying treatment is conducted, sulfidizing is conducted, and the product is obtained, wherein the active components are composed of one or more of VB group metals and one or more of VIIB group metals. According to the catalyst for hydrodeoxygenation of the bio-oil and the preparation method of the catalyst, the inorganic acid is utilized for pretreating the catalyst, the selectivity of a hydrogenation decarboxylation and decarbonylation reaction is improved, and the sulfur fixation performance and thermal stability of the catalyst are improved.

Description

technical field [0001] The invention relates to the technical field of oil upgrading, in particular to a catalyst for bio-oil hydrodeoxygenation and a preparation method thereof. Background technique [0002] With the increasing of heavy crude oil and environmental pollution, coal liquefied oil, Fischer-Tropsch synthetic oil and bio-oil (various animal and vegetable oils) have attracted the attention of researchers as ideal alternative energy sources, especially bio-oil, because of its It has the characteristics of less pollutant discharge and short cycle period, so it has become the focus of research. Compared with crude oil, the content of oxygenated compounds in bio-oil is higher, and the main types of oxygenated compounds include phenols, furans, esters and ketones. Due to the existence of a large number of oxygen-containing compounds, the oxygen content of bio-oil sometimes reaches as high as 50% by weight, resulting in bio-oil with low combustion calorific value, unst...

Claims

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Application Information

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IPC IPC(8): B01J23/34B01J35/10B01J37/18B01J37/20
CPCB01J23/34B01J37/18B01J37/20B01J35/615
Inventor 温明
Owner GUANGHAN TIANZHOU AERO ENGINE FUEL TECH CO LTD
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